VEXpression

Bend

float angle = ch('angle') * -1;
float range = ch('range');
if(angle==0.0 || range==0.0) return;
angle = radians(angle / range);

int limit = chi('limit');
vector origin = chv('orig');
vector dir = normalize( chv('dir') );
vector up = normalize( chv('up') );
vector rotaxis = cross(up, dir);

/* Distance from Origin-Plane */
vector v = @P-origin;
float dist = dot(v, dir);
if(limit==1) dist = clamp(dist, -range, range);
if(limit==2) dist = clamp(dist, 0, range);

vector onplanepos = @P-dir*dist;

/* Rotate */
vector rotoffset = up / angle - origin;
vector4 q = quaternion(angle * dist, rotaxis);
vector base = qrotate(q, rotoffset) - rotoffset;
onplanepos = qrotate(q, onplanepos);

@P = base + onplanepos;